Soft copper wire: 20 gauge (wire diameter 0.8mm): 12cm (about 5 inch) 22 gauge (wire diameter 0.4mm): 30cm (12 inch) Beads: 4mm (crystal abacus) Subscribe! subscribe subscribe ...
Learn how to transform a 3.7V battery to power a 220V device with this step-by-step mini inverter tutorial. Discover the essential components and techniques needed to build this useful DIY project.